/Engine/Source/Runtime/Engine/Classes/PhysicsEngine/BodyInstance.h
Get distance to the body surface if available It is only valid if BodyShape is convex If point is inside distance it will be 0 Returns false if geometry is not supported
true if a distance to the body was found and OutDistanceSquared has been populated
bool GetSquaredDistanceToBody ( const FVector & Point, float & OutDistanceSquared, FVector & OutPointOnBody ) const